After extraction, only text content is compared in. We'll consider the following sequence of elements in the above array: [Employee(name=Jake, age=25, salary=3000.0, mobile=9922001),Įmployee(name=Jake, age=22, salary=2000.0, mobile=5924001),Įmployee(name=Ace, age=22, salary=3000.0, mobile=6423001),Įmployee(name=Keith, age=35, salary=4000. How does the PDF comparison works Once you choose your files, text content is extracted from each page. The reason why your method takes a Comparator is so that the caller can choose how the strings should be compared. The nullsFirst function will return a Comparator that keeps all nulls at the beginning of the ordering sequence: void whenNullsFirst_thenSortedByNameWithNullsFirst() Comparator is an interface different classes can implement it in different ways to perform different kinds of comparisons. In this guide, we focus on the introduction of Foxit PDF SDK for Java API on. Java allows us to implement various sorting algorithms with any type of data. This project allows creation of new PDF documents, manipulation of. Let's randomly insert null values in the employees array: How to compare two PDF documents and save the differences between them into. The Apache PDFBox library is an open source Java tool for working with PDF documents.
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